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| author | Matt Strapp <msattr@gmail.com> | 2020-02-12 10:58:03 -0600 |
|---|---|---|
| committer | Matt Strapp <msattr@gmail.com> | 2020-02-12 10:58:03 -0600 |
| commit | 64d1edae4ef80d2721e4934390897dac0146b901 (patch) | |
| tree | 490010c83a469001bfac10439cbc8c11c5f221e2 /Lab_2B.X/lab2b_asm.s | |
| parent | Do more stuff (diff) | |
| parent | Do lab 2b (diff) | |
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Merge branch 'master' of https://github.com/RosstheRoss/EE2361Projects
Diffstat (limited to '')
| -rw-r--r-- | Lab_2B.X/lab2b_asm.s | 77 |
1 files changed, 39 insertions, 38 deletions
diff --git a/Lab_2B.X/lab2b_asm.s b/Lab_2B.X/lab2b_asm.s index 4b983c2..ddee29b 100644 --- a/Lab_2B.X/lab2b_asm.s +++ b/Lab_2B.X/lab2b_asm.s @@ -1,39 +1,40 @@ -.include "xc.inc" - -.text ;BP (put the following data in ROM(program memory)) - -; This is a library, thus it can *not* contain a _main function: the C file will -; define main(). However, we -; we will need a .global statement to make available ASM functions to C code. -; All functions utilized outside of this file will need to have a leading -; underscore (_) and be included in a comment delimited list below. -.global _write_0, _write_1, _wait_100us, _wait_1ms - -_wait_100us: - repeat #1593 - nop - return - -_wait_1ms: - repeat #15993 - nop - return - -_write_0: ;2 cycles for function call - inc LATA ;1 - repeat #3 ;1 for load - nop ;3+1=4 nop - clr LATA ;1 - repeat #6 ;1 for load - nop ;1+6=7 nop - return ;3 return - - -_write_1: ;2 cycle call - inc LATA ;1 - repeat #10;1 load - nop ;1+10=11 nop - clr LATA ;1 - nop ;1 - return ;3 return +.include "xc.inc"
+
+.text ;BP (put the following data in ROM(program memory))
+
+; This is a library, thus it can *not* contain a _main function: the C file will
+; define main(). However, we
+; we will need a .global statement to make available ASM functions to C code.
+; All functions utilized outside of this file will need to have a leading
+; underscore (_) and be included in a comment delimited list below.
+.global _write_0, _write_1, _wait_100us, _wait_1ms
+
+_wait_100us:
+ repeat #1593
+ nop
+ return
+
+_wait_1ms:
+ repeat #15993
+ nop
+ return
+
+_write_0: ;2 cycles for function call
+ inc LATA ;1
+ repeat #2 ;1 for load
+ nop ;2+1=3 nop
+ clr LATA ;1
+ repeat #6 ;1 for load
+ nop ;1+6=7 nop
+ return ;3 return
+
+
+_write_1: ;2 cycle call
+ inc LATA ;1
+ repeat #8 ;1 load
+ nop ;1+9=10 nop
+ clr LATA ;1
+ nop ;1
+ nop ;1
+ return ;3 return
\ No newline at end of file |